Best way to travel between Seoul, South Korea and Changsha

A: Seoul, South Korea

B: Changsha

Travel Modes: Price; Distance; Duration; CO2

flight: $247.0; 1876.16 km; 10h 16mins; 202.63 kgs

bus: $293.27; 3022.95 km; 56h 48mins; 90.69 kgs

train: $331.0; 2398.2 km; 32h 58mins; 127.1 kgs

drive: $461.85; 2965.37 km; 50h 9mins; 379.57 kgs

Tranport	Distance	Time(hrs)	Cost(local)	Cost(usd)
Flight	1876.16 km	10h 16mins	1,507 CNY	247.0
Bus	3022.95 km	56h 48mins	1,789 CNY	293.27
Train	2398.2 km	32h 58mins	2,019 CNY	331.0
Drive	2965.37 km	50h 9mins	2,817 CNY	461.85

Take Train from Seoul to Gimpo Airport: Time: 18mins Cost: 24 CNY; $ 3.6 - 4.4 USD CO2 Emission: 1.03 kgs
Take Flight from GMP to YIC: Time: 5h 7mins Cost: 1,342 CNY; $ 198.0 - 242.0 USD CO2 Emission: 178.83 kgs
Take Car from Yichun to Yichun: Time: 6mins Cost: 31 CNY; $ 4.5 - 5.5 USD CO2 Emission: 0.84 kgs
Take Train from Yichun to Changsha: Time: 1h 38mins Cost: 110 CNY; $ 16.2 - 19.8 USD CO2 Emission: 10.31 kgs

Source: Rome2rio

Mode of travel comparision chart

The best and cheapest way to get from Seoul, South Korea and Changsha is to travel by air, which will cost about 1,507 CNY or 222.30 USD.